Railway vehicles

Abstract

To provide a railway vehicle having a structure which has an auxiliary wiper device and can prevent a main wiper device and an auxiliary wiper device from interfering with each other due to erroneous operation.SOLUTION: A railway vehicle 10 has a first main wiper device 50A provided in a windscreen 25 in a driver's seat and an auxiliary wiper device 55 in which a second wiping range A2 overlapping with a first wiping range A1 of the first main wiper device 50 is set, which comprises a manually switching part 65 that switches an operation of the first main wiper device 50A and the auxiliary wiper device 55, and an attachable / detachable extension rod 70 that is used to manually change a wiper position of the first main wiper device 50A, where the extension rod 70 is attachably and detachably arranged at a position where access to a connection site at which the first main wiper device 50A is connected to the extension rod 70 is disturbed.SELECTED DRAWING: Figure 7

Description

Technical Field

[0001] The present invention relates to a railway vehicle having a structure for preventing wiper mishandling and damage, which is provided with a main wiper device and an auxiliary wiper device for wiping the windshield of the leading vehicle.

Background Art

[0002] A wiper device (hereinafter referred to as the main wiper device for distinction from others) is provided outside the windshield of the driver's cab of a railway vehicle so as to ensure the driver's visibility even in bad weather conditions such as during rainfall or snowfall. This main wiper device is subjected to an operation check during vehicle maintenance or before operation, and if it fails, repair or replacement is required. In many cases, the main wiper device is repaired at the factory, but there are also cases where a failure occurs during operation and the vehicle cannot run. There are vehicles equipped with an auxiliary wiper device that can be used as an emergency measure to enable the use of the wiper in case of such an in-operation failure.

[0003] Patent Document 1 discloses a technique related to a portable wiper device. It is a portable wiper device (corresponding to the above-mentioned auxiliary wiper device) in which a wiper unit and a suction device are provided on a base member, and a battery is connected by a power cord. When the existing main wiper device fails, it can be fixed at an appropriate position on the surface of the windshield to replace the function of the existing main wiper device. Chains attached to the main body and the battery are respectively locked at appropriate locations on the outer surface of the vehicle to prevent them from falling.

[0004] Patent Document 2 discloses technology relating to a main wiper device, a vehicle equipped therewith, and a railway vehicle. The vehicle includes a wiper arm mounted on the windshield, a wiper shaft that supports the wiper arm and penetrates from the outer surface to the interior of the windshield, a motor that rotates the wiper arm and wiper shaft, and a clutch mechanism that switches between electric drive and manual drive in emergencies, with the manual drive being operable with only the foot. Therefore, when manually driven, the vehicle driver can drive the wiper using a foot-operated wiper drive means without using their hands, thus minimizing interference with driving. [Prior art documents] [Patent Documents]

[0005] [Patent Document 1] Japanese Patent Publication No. 2009-274555 [Patent Document 2] Japanese Patent Publication No. 2007-261416 [Overview of the project] [Problems that the invention aims to solve]

[0006] However, the portable wiper device described in Patent Document 1 requires the operator to exit the vehicle to perform the work, making it difficult to install while the vehicle is in motion. Therefore, the vehicle must be stopped somewhere before the portable wiper device can be installed on the windshield. This would affect the train schedule, which is problematic. Furthermore, the need to perform work outside the vehicle in bad weather places a significant burden on the driver, which is also problematic.

[0007] On the other hand, if a manual drive system is provided in addition to the electric drive system, as in Patent Document 2, and a switching mechanism is used in emergencies, long-distance operation in manual drive mode is not practical. Furthermore, in cases of heavy rain, the manual drive system would need to be operated frequently, which would likely place a burden on the driver, even if it were a foot-operated drive system. Moreover, the method in Patent Document 2 can only deal with failures of the electric drive system. For example, in the case of failures due to damage to the wiper blade or wiper shaft, the wiper system cannot be operated even if the manual drive system is switched on.

[0008] For these reasons, it is conceivable to permanently install an auxiliary wiper device as described in Patent Document 1. However, even in this case, care must be taken to ensure that the wiper arms and blades do not interfere with each other in order to drive the auxiliary wiper device in response to a failure of the existing main wiper device. Depending on the position of the wiper blade when the main wiper device fails, it may interfere with the wiper arms and blade of the auxiliary wiper device, preventing it from driving. In this case, it is necessary to move the wiper blade of the main wiper device out of the wiping area of ​​the auxiliary wiper device, but since this operation is performed by the driver, there is a risk of damaging the wiper device itself due to mishandling. It is desirable that such a response be possible without burdening the driver.

[0009] Therefore, the present invention aims to solve these problems and provide a railway vehicle equipped with a structure that prevents mishandling by the driver when switching the drive from the main wiper device to the auxiliary wiper device. [Means for solving the problem]

[0010] To achieve the above objective, a railway vehicle according to one aspect of the present invention has the following features.

[0011] (1) A railway vehicle having a main wiper device provided for wiping the windshield of the driver's seat and an auxiliary wiper device provided as a backup for the main wiper device, The auxiliary wiper device has a wiping area that overlaps with the wiping area of ​​the main wiper device, A switching means for switching the operation of the main wiper device and the auxiliary wiper device, The main wiper device includes a detachable manual member used to manually change the position of the wiper blade, The manual component is detachably stored in a storage position that obstructs access to the switching means. It is characterized by the following.

[0012] In the manner described in (1) above, the main wiper device and auxiliary wiper device installed on a railway vehicle have manual components that obstruct access to the switching mechanism for switching their drive, so it is necessary to remove the manual components before performing the switching operation, which functions as a procedure (avoidance of errors) that reminds the user of the operation to retract the wiper blade of a malfunctioning main wiper device. As shown in the problem, when a main wiper device is installed on the windshield of the driver's cab of a railway vehicle and an auxiliary wiper device is provided in case of failure of the main wiper device, the wiping areas of the main wiper device and the auxiliary wiper device on the windshield are set to overlap.

[0013] Therefore, if an operator mistakenly switches the drive of the main wiper device and the auxiliary wiper device using the switching mechanism without retracting the wiper blade of the main wiper device, and activates the auxiliary wiper device, there is a risk that the main wiper device's wiper blade, which is not retracted and is malfunctioning, will interfere with the activated auxiliary wiper device's wiper blade and damage the auxiliary wiper device as well. However, by positioning the manual component in a location that obstructs access to the switching mechanism, it becomes impossible to access the switching mechanism without picking up the manual component, thus preventing the auxiliary wiper device from being activated while the main wiper device's wiper blade remains in the auxiliary wiper device's wiper wiping area.

[0014] The auxiliary wiper system is installed so that, in the event that the main wiper system malfunctions during operation, the driver can switch to the auxiliary wiper system from inside the vehicle to continue operation. However, if the wiper blades of the main wiper system and the auxiliary wiper system interfere with each other and the auxiliary wiper system is also damaged, the vehicle will not be able to continue operating. However, this invention makes it possible to prevent such problems, thereby further improving the safety of railway operations.

[0015] (2)(1) In the railway vehicles described above, The switching means includes a knob attached to a changeover switch that switches the power supply circuits of the main wiper device and the auxiliary wiper device, By removing the knob from the aforementioned changeover switch, it is possible to prevent the changeover switch from being operated. The storage box for storing the removed knob is positioned such that the knob cannot be removed by storing the manual component in the storage position. It is preferable.

[0016] In the configuration described in (2) above, the switching mechanism consists of a changeover switch and its knob, and by removing the knob from the changeover switch, the changeover switch cannot be switched. The knob is then removed and placed in a storage box, and access to this storage box is blocked by a manual component, so that the procedure must always start with removing the manual component. In other words, the storage box in which the knob, which is the switching mechanism, is stored cannot be accessed without picking up the manual component, and this functions as a safety feature to prevent errors, preventing the auxiliary wiper device from being driven while the wiper blade of the main wiper device remains in the wiping area of ​​the auxiliary wiper device.

[0017] (3) In the railway vehicles described in (1) or (2), The switching means includes a manual switching unit connected to the pivot shaft of the main wiper device, The manual switching unit can manually change the position of the wiper blade of the main wiper device by attaching the manual member made of a rod-shaped member. The manual switching unit is provided with a cover having an opening / closing door at the upper part thereof. The manual member is detachably installed so as to inhibit the opening and closing of the opening / closing door. This is preferable.

[0018] According to the aspect described in (3) above, by removing the manual member arranged so as to inhibit the opening and closing of the opening / closing door provided on the cover covering the manual switching unit and opening the cover covering the manual switching unit, access to the manual switching unit can be achieved. By providing the manual member on the cover detachably in this way, the switching from the main wiper device to the auxiliary wiper device can be performed in the correct procedure.

[0019] (4) In the railway vehicle described in (2) above, The changeover switch is preferably arranged on the switchboard on the passenger partition side. This is preferable.

[0020] According to the aspect described in (4) above, the changeover switch is arranged on the passenger partition side. That is, when the driver is in the driver's seat and performing normal operation (when the main wiper device is not malfunctioning), the driver does not visually observe the changeover switch. On the other hand, when the main wiper device malfunctions and the auxiliary wiper device needs to be operated, it is necessary to operate the changeover switch arranged in the switchboard facing the passenger partition side. Therefore, it is possible to prevent the changeover switch from being accidentally switched during the normal operation of the main wiper device.

[0021] (5) In the railway vehicle described in (4) above, The switchboard is provided with a cover covering the changeover switch, and the inside of the cover has a protrusion. The protrusion is arranged so as to interfere with the knob attached to the changeover switch when the changeover switch is tilted to the side where the main wiper device operates. This is preferable.

[0022] As described in (5) above, when the knob is installed, the cover of the distribution board will not close properly unless the changeover switch is set to the side where the auxiliary wiper device operates. This makes it possible to notice if the changeover switch has been forgotten and prevents forgetting to change the changeover switch. [Brief explanation of the drawing]

[0023] [Figure 1] This is a front view of the railway vehicle according to this embodiment. [Figure 2] This is a top-view cross-sectional view of the driver's cab of a railway vehicle according to this embodiment. [Figure 3] This is a magnified view of the driver's side of this embodiment. [Figure 4] This is a magnified cross-sectional view of the wiper device on the driver's side of this embodiment. [Figure 5] This is a cross-sectional view of the main wiper device of this embodiment. [Figure 6] This diagram shows the mechanism of the main wiper device as viewed from the driver's side in this embodiment. [Figure 7] This is a plan view showing the cover portion of the mechanism of the main wiper device in this embodiment. [Figure 8] This is a schematic perspective view showing the area around the lid of this embodiment. [Figure 9] This is a schematic perspective view showing the state in which the extension rod (manual component) of this embodiment has been removed. [Figure 10] This is a schematic perspective view showing the extension rod connected to the switching mechanism in this embodiment. [Figure 11] This is a schematic perspective view showing the state in which the extension rod of this embodiment is operated. [Figure 12] This is a schematic perspective view showing the lid closed with the extension rod connected to the switching mechanism in this embodiment. [Figure 13] This is a perspective view of the circuit breaker panel installed behind the driver's seat in this embodiment. [Figure 14](a) A perspective view showing the cover closed before the changeover switch is switched in this embodiment. (b) A perspective view showing the cover closed after the changeover switch has been switched in this embodiment. [Figure 15] This is a flowchart showing the wiper device switching procedure in this embodiment. [Modes for carrying out the invention]

[0024] First, embodiments of the present invention will be described with reference to the drawings. Figure 1 shows a front view of the railway vehicle according to this embodiment. Figure 2 shows a top-view cross-sectional view of the driver's cab of the railway vehicle, corresponding to section AA in Figure 1. Figure 3 shows a partially enlarged view of the driver's seat side, corresponding to the view taken by arrow B in Figure 2.

[0025] The windshield 25, which is installed in front of the driver's cab 20 of the railway vehicle 10, consists of two surfaces: a first glass 25A located on the right side and a second glass 25B located on the left side, both installed on the end structure 11 with the through door 30 in between. In other words, the first glass 25A is located on the driver's seat 21 side, and the second glass 25B is located on the assistant driver's seat 22 side, serving as the windshield 25.

[0026] Main wiper devices 50 are provided to wipe the first glass 25A and the second glass 25B, respectively, and by operating them in environments where water droplets adhere to the windshield 25, such as in rainy weather, visibility can be ensured. For the sake of explanation, the first main wiper device 50A is provided on the first glass 25A on the driver's side 21, and the second main wiper device 50B is provided on the second glass 25B on the passenger side 22. In cases where there is no need to distinguish between the driver's side 21 and the passenger side 22, or when referring to both, the A or B at the end of the designation is omitted.

[0027] The main wiper device 50 is mounted on the end frame 11 near the lower edge, approximately in the center of the windshield 25 in the vehicle width direction, with a pivot shaft 66 (described later) penetrating from the inside to the outside of the vehicle, so that the wiper blade 51 faces upward. The wiper arm 52 moves the wiper blade 51 back and forth (in the vehicle width direction) on the windshield 25, thereby ensuring visibility from the driver's seat 21. The first main wiper device 50A, located on the driver's seat 21 side, and the second main wiper device 50B, located on the passenger seat 22 side, have almost the same configuration, but the first main wiper device 50A differs from the second main wiper device 50B in that it can be switched with an auxiliary wiper device 55.

[0028] The second wiping range A2 of the auxiliary wiper device 55 is set so as to overlap with the first wiping range A1 of the first main wiper device 50A, which is installed on the first glass 25A on the driver's seat side 21, in the area directly in front of the driver when seated in the driver's seat 21. The auxiliary wiper device 55 is positioned next to the first main wiper device 50A. The auxiliary wiper device 55 is used when the first main wiper device 50A malfunctions. The switching procedure will be described later.

[0029] The first main wiper unit 50A and the auxiliary wiper unit 55 are configured as follows, allowing them to be switched. Figure 4 shows an enlarged cross-sectional view of the wiper unit on the driver's side. Figure 4 corresponds to an enlarged view of the dashed-dotted line section in Figure 2. Figure 5 shows a cross-sectional view of the main wiper unit corresponding to the DD section in Figure 4. Figure 6 shows the mechanism of the main wiper unit from the driver's side, as viewed from the F arrow in Figure 5.

[0030] The wiper arm 52 of the first main wiper device 50A, located on the driver's seat 21 side, is connected to a manual switching unit 65, which corresponds to a switching mechanism located on the driver's cab 20 side, via a pivot shaft 66 that penetrates the end structure 11, as shown in Figure 5. The pivot shaft 66, which engages with the manual switching unit 65, is provided through the end structure 11 and is rotatably supported by a bearing (not shown).

[0031] As shown in Figure 6, the link plate 68, which is connected to the manual switching unit 65 by a link rod 67, is pivotally supported on the rotating shaft 69. The link plate 68 is rotated by the first motor 60A. Therefore, the rotation of the first motor 60A causes the link plate 68 to rotate, which is converted into reciprocating motion by the link rod 67 and transmitted to the manual switching unit 65, causing the wiper arm 52, which is connected to the manual switching unit 65 by a rotating shaft 66, to reciprocate. In other words, the first main wiper device 50A is operated by the action of the first motor 60A. On the other hand, the auxiliary wiper device 55 is driven by the second motor 60B and operates by a similar link mechanism, but is designed so that it is not energized during normal operation by a changeover switch 72, which will be described later.

[0032] As shown in Figure 6, the manual switching section 65 provided in the first main wiper device 50A has an insertion opening 65A that is connected to a pivot shaft 66 and into which an extension rod 70 corresponding to a manual member is inserted, and is provided so as to be approximately parallel to the wiper arm 52. The insertion opening 65A is formed in a cylindrical shape so that the shaft portion of the rod-shaped extension rod 70 can be inserted, and is fixed to the manual switching section 65, so that the position of the wiper arm 52 and wiper blade 51 can be changed by inserting the extension rod 70 into the manual switching section 65 and rotating it.

[0033] The extension rod 70 is a device with a metal shaft and a grip handle at one end, and is used by inserting the other end into the insertion port 65A of the manual switching unit 65. Since it is not used during normal operation, it is removed and stored on the designated retaining bracket 13A, which will be described later. Figure 7 shows a plan view of the cover portion of the mechanism of the main wiper device. The aforementioned manual switching unit 65 and the like do not need to be operated during normal operation, so they are covered by the cover 12 and the lid 13. As shown in Figure 2, the manual switching unit 65 is provided along the inner surface of the end structure 11 on the driver's seat 21 side of the driver's cab 20. A driver's console (not shown) is provided on the driver's seat 21 side and is equipped with instruments such as a speedometer and other driving equipment. The manual switching unit 65 is provided below the first glass 25A and is located at the back of the driver's console (between the first glass 25A and the driver's console) as seen from the seated driver.

[0034] The cover 12 and lid 13 are provided to prevent accidental access to the manual switching section 65. The lid 13 is equipped with a retaining bracket 13A, a handle 14, and a knob storage 15. The lid 13 is held open and closed by a hinge and is designed to open to the right when standing on the driver's seat 21 side. Opening the lid 13 allows access to the manual switching section 65.

[0035] The retaining brackets 13A, located in two places on the upper surface of the closed lid 13, are roughly U-shaped and open upwards, allowing them to grip and secure the metal shaft portion of the extension rod 70. When the extension rod 70 is held in place by the lid 13, it is positioned so that the handle 14 and knob storage 15 on the lid 13 cannot be accessed. In other words, in order to access the handle 14, the knob storage 15, and the manual switching section 65 located at the back of the lid 13, the extension rod 70 must be removed.

[0036] The handle 14 is retracted into a recess when not in use, and functions as a handle when it is pinched with the fingers and pulled up. The knob storage 15 also houses the knob 71, which is necessary for operating the removable changeover switch 72 described later.

[0037] The procedure for switching between the first main wiper device 50A and the auxiliary wiper device 55 of the railway vehicle 10 with the above configuration will be described below.

[0038] Figure 8 shows a schematic perspective view of the area around the cover. Figure 9 shows a schematic perspective view of the state with the extension rod removed. Figure 10 shows a schematic perspective view of the state with the extension rod connected to the switching mechanism. Figure 11 shows a schematic perspective view of the state with the extension rod being operated. Figure 12 shows a schematic perspective view of the cover closed with the extension rod connected to the switching mechanism. Figure 13 shows a perspective view of the circuit breaker panel installed behind the driver's seat. Figure 14 shows an enlarged perspective view of the area around the changeover switch on the circuit breaker panel. (a) shows the cover closed before switching the changeover switch, and (b) shows the cover closed after switching the changeover switch. Figure 15 shows a flowchart of the wiper device switching procedure.

[0039] The procedure for switching from the main wiper device 50 to the auxiliary wiper device 55 is as follows: First, in S10, the wiper power is turned OFF. This is to prevent the main wiper device 50A from operating during the switching process. Then, in S11, the extension rod 70, which is installed at the bottom of the first glass 25A on the driver's seat 21 side, is removed from the cover 13. As mentioned above, the extension rod 70 is held in place by a retaining bracket 13A attached to the cover 13. By removing the extension rod 70, the handle 14 and knob storage 15 provided on the cover 13 become accessible, and the cover 13 can be opened and closed.

[0040] In S12, the knob 71, described later, is removed from the knob storage 15. In S13, the knob 71 removed from the knob storage 15 is inserted into the shaft of the changeover switch 72 on the circuit breaker panel 80 (distribution panel) located on the rear side of the driver's seat 21, as shown in Figure 13 (the changeover switch 72 is removable from the knob 71, and cannot be operated when the knob 71 is removed).

[0041] In S14, with the knob 71 inserted, the changeover switch 72 switches from the main wiper device 50A to the auxiliary wiper device 55. This electrically switches the power supply to the first motor 60A used to drive the first main wiper device 50A off, and to the second motor 60B used to drive the auxiliary wiper device 55.

[0042] In S15, the lid 13 is opened. The lid 13 is lifted up using the handle 14. As shown in Figure 10, the lid 13 can be opened to more than 90 degrees, so it can be kept in the open position. This allows access to the manual switching unit 65 stored beneath the lid 13, and the extension rod 70 can be inserted into the insertion port 65A provided in the manual switching unit 65.

[0043] In S16, the extension rod 70 is tilted from its right-side position as shown in Figure 10 to its left-side position as shown in Figure 11, retracting the wiper arm 52. With the extension rod 70 inserted into the socket 65A, the manual switching unit 65 is rotated by tilting the extension rod 70 to the position of the notched member 12A, moving the wiper arm 52 to a position within the first wiping range A1 that does not overlap with the second wiping range A2 of the auxiliary wiper device 55 (retracted position A12 shown in Figure 3). In S17, the cover 13 is closed. By closing the cover 13, the extension rod 70 is prevented from moving in a position where it protrudes from the notched member 12A as shown in Figure 12, and is obstructed by the cover 13. In other words, the cover 13 restricts the movement of the extension rod 70. Then, in S18, the wiper power is turned ON.

[0044] When the extension rod 70 is moved to the position shown in Figure 11, the shaft of the extension rod 70 fits into the notched portion 12A of the rubber sheet cover provided on the cover 12, and with the extension rod 70 in this position, the lid 13 can be closed as shown in Figure 9. When the extension rod 70 is in this position, the auxiliary wiper device 55 will not interfere with the first main wiper device 50A even when operated. In some cases, the manual switching unit 65 may be in the retracted position, but even in this case, it is necessary to insert the extension rod 70 and ensure that the shaft of the extension rod 70 is securely moved into the notched portion 12A.

[0045] With the shaft portion of the extension rod 70 passing through the notch portion 12A of the cover 12, the lid 13 restricts the movement of the extension rod 70, so the manual switching unit 65 does not move. In other words, by closing the lid 13, the wiper blade 51 of the first main wiper device 50A is prevented from entering the second wiping range A2.

[0046] Now, let's explain the circuit breaker panel 80. In Figure 15, at S14, the changeover switch 72 switches the connection from the main wiper device 50A to the auxiliary wiper device 55. As shown in Figure 13, the circuit breaker panel 80 is provided with a cover 76, and the changeover switch 72 is mounted inside the cover. The changeover switch 72 is operated by inserting a knob 71 into it, and has the function of switching the power supply to the main wiper device 50A side and the power supply to the auxiliary wiper device 55 side. The projection 75 provided on the back side of the cover 76 is positioned to interfere with the knob 71 of the changeover switch 72.

[0047] Specifically, as shown in Figure 14(a), when the changeover switch 72 to which the knob 71 is attached is tilted to the left when the driver is facing the barrier panel 80, that is, when the main wiper device 50A is energized, when attempting to close the cover 76, the projection 75 interferes with the knob 71, causing the cover 76 to not close completely and remain ajar. On the other hand, as shown in Figure 14(b), when the changeover switch 72 to which the knob 71 is attached is tilted to the right when the driver is facing the barrier panel 80, that is, when the auxiliary wiper device 55 is energized, the knob 71 and the projection 75 do not interfere with each other, and the cover 76 closes. The projection 75 provided on the back surface of the cover 76 has a stepped structure so that it may interfere with the knob 71 depending on its position, and the protruding part of the projection 75 interferes with the knob 71, preventing the cover 76 from closing.

[0048] Because the railway vehicle 10 of this embodiment has the above configuration, it provides the following functions and effects.

[0049] First, the railway vehicle of this embodiment is equipped with an auxiliary wiper device 55, which prevents the main wiper device 50 from being forgotten to be retracted when operating the auxiliary wiper device 55, thus preventing contact and damage between the auxiliary wiper device 55 and the main wiper device 50. This is because the railway vehicle 10 has a first main wiper device 50A provided on the windshield 25 of the driver's seat and an auxiliary wiper device 55 which has a wiping area (second wiping area A2) that overlaps with the wiping area (first wiping area A1) of the first main wiper device 50A, and is equipped with a manual switching unit 65 for switching the operation of the first main wiper device 50A and the auxiliary wiper device 55, and a detachable manual member (extension rod 70) used to manually change the wiper position of the first main wiper device 50A, and the extension rod 70 is detachably installed in a position that obstructs access to the connection part that connects the first main wiper device 50A and the extension rod 70.

[0050] In other words, by switching from the first main wiper device 50A to the auxiliary wiper device 55 in the procedure shown in Figure 15, it is possible to prevent the wiper blade 51 of the first main wiper device 50A from entering the second wiping range A2 of the auxiliary wiper device 55. This operating procedure is determined by the arrangement of the extension rod 70, which means that it functions as a way to prevent errors. That is, the structure is such that the manual switching unit 65 cannot be accessed without first removing the extension rod 70, which reminds the user to retract the first main wiper device 50A, and thus prevents interference between the first main wiper device 50A and the auxiliary wiper device 55.

[0051] In other words, the manual switching unit 65 is covered by the cover 13 to prevent accidental operation, the extension rod 70 is held on top of the cover 13, and the knob storage 15 is provided on the cover 13 to house the knob 71. Therefore, the cover 13 cannot be opened or closed, nor can the knob storage 15 be opened, unless the extension rod 70 is removed. Consequently, in order to operate the auxiliary wiper device 55, the extension rod 70 must be held, and in order to switch the operation with the knob 71, the extension rod 70 must be attached to the manual switching unit 65. In short, by adopting such a storage structure, it is possible to reduce the risk of forgetting to retract the first main wiper device 50A and operating the auxiliary wiper device 55.

[0052] Furthermore, in relation to the changeover switch 72 provided on the circuit breaker panel 80 and its cover 76, a projection 75 is provided on the cover 76. When the knob 71 is attached to the changeover switch 72 and the cover 76 is closed, as shown in Figure 14(a), if the changeover switch 72 is energized to the main wiper device 50A, the projection 75 and the knob 71 interfere with each other, preventing the cover 76 from closing properly, thus functioning as a safety feature to prevent errors. As shown in Figure 14(b), if the changeover switch 72 is energized to the auxiliary wiper device 55, the projection 75 and the knob 71 do not interfere with each other, so the cover 76 closes properly. In other words, when switching the changeover switch 72 using the knob 71, if the changeover switch 72 is not switched, the cover 76 will not close properly, allowing the forgotten operation to be visually detected, thus contributing to preventing forgetting to switch the changeover switch 72.

[0053] The above describes the railway vehicle 10 according to the present invention, but the present invention is not limited thereto, and various modifications are possible without departing from its spirit. For example, the structure of the railway vehicle 10 is merely illustrative and does not prevent the shape of the leading car from being aerodynamically designed, such as that of a high-speed vehicle. Furthermore, it does not prevent the adoption of an auxiliary wiper device 55 in the second main wiper device 50B (on the assistant driver's seat 22 side). [Explanation of symbols]

[0054] 10 Railway vehicles 50 Main wiper device 51 Wiper Blades 70 Extension rod

Claims

1. In a railway vehicle having a main wiper device for wiping the windshield of the driver's seat and an auxiliary wiper device provided as a backup for the main wiper device, The auxiliary wiper device has a wiping area that overlaps with the wiping area of ​​the main wiper device, A switching means for switching the operation of the main wiper device and the auxiliary wiper device, The main wiper device includes a detachable manual member used to manually change the position of the wiper blade, The manual component is detachably stored in a storage position that obstructs access to the switching means. A railway vehicle characterized by [this feature].

2. In the railway vehicle described in claim 1, The switching means includes a knob attached to a changeover switch that switches the power supply circuits of the main wiper device and the auxiliary wiper device, By removing the knob from the aforementioned changeover switch, it is possible to prevent the changeover switch from being operated. The storage box for storing the removed knob is positioned such that the knob cannot be removed by storing the manual component in the storage position. A railway vehicle characterized by [this feature].

3. In the railway vehicle according to claim 1 or claim 2, The switching means includes a manual switching unit connected to the pivot shaft of the main wiper device, The manual switching unit allows for the manual adjustment of the wiper blade position of the main wiper device by attaching the manual member, which is made of a rod-shaped member. The above manual switching section is equipped with a cover having an opening and closing door, The manual component is detachably installed so as to obstruct the opening and closing of the aforementioned door. A railway vehicle characterized by [this feature].

4. In the railway vehicle described in claim 2, The aforementioned changeover switch is located in the power distribution panel on the passenger compartment side. A railway vehicle characterized by [this feature].

5. In the railway vehicle described in claim 4, The distribution panel is provided with a cover that covers the changeover switch, and the inside of the cover has a protrusion. The projection is positioned such that, when the changeover switch is tilted to the side where the main wiper device operates, the knob attached to the changeover switch interferes with the projection. A railway vehicle characterized by [this feature].

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